Altamont Creek Elementary (Data source)
Source data for Altamont Creek Elementary
2015
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 60690 | 2433 | - | 2436 | = | -3 | * | (90 | / | 279) | = | -0.96774194 | ||
| 4 | 60691 | 2454 | - | 2485 | = | -31 | * | (107 | / | 279) | = | -11.88888886 | ||
| 5 | 60694 | 2482 | - | 2528 | = | -46 | * | (82 | / | 279) | = | -13.51971326 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Altamont Creek Elementary | -26 | ||||||||||||
2016
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 1611 | 2480 | - | 2436 | = | 44 | * | (81 | / | 269) | = | 13.2490706 | ||
| 4 | 1613 | 2471 | - | 2485 | = | -14 | * | (85 | / | 269) | = | -4.42379182 | ||
| 5 | 1615 | 2469 | - | 2528 | = | -59 | * | (103 | / | 269) | = | -22.59107805 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Altamont Creek Elementary | -14 | ||||||||||||
2017
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 1660 | 2463 | - | 2436 | = | 27 | * | (76 | / | 262) | = | 7.83206105 | ||
| 4 | 1661 | 2502 | - | 2485 | = | 17 | * | (92 | / | 262) | = | 5.96946565 | ||
| 5 | 1663 | 2486 | - | 2528 | = | -42 | * | (94 | / | 262) | = | -15.06870225 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Altamont Creek Elementary | -1 | ||||||||||||
2018
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 1676 | 2479 | - | 2436 | = | 43 | * | (78 | / | 255) | = | 13.15294114 | ||
| 4 | 1677 | 2505 | - | 2485 | = | 20 | * | (84 | / | 255) | = | 6.58823528 | ||
| 5 | 1680 | 2514 | - | 2528 | = | -14 | * | (93 | / | 255) | = | -5.10588235 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Altamont Creek Elementary | 15 | ||||||||||||
2019
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 1701 | 2458 | - | 2436 | = | 22 | * | (105 | / | 262) | = | 8.81679388 | ||
| 4 | 1702 | 2514 | - | 2485 | = | 29 | * | (77 | / | 262) | = | 8.52290074 | ||
| 5 | 1703 | 2524 | - | 2528 | = | -4 | * | (80 | / | 262) | = | -1.22137404 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Altamont Creek Elementary | 16 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -26 | -14 | -1 | 15 | 16 | -10.0 | -2.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 52.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -56.0
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources:
| 2015 | 2016 | 2017 | 2018 | 2019 | |
|---|---|---|---|---|---|
| Percent | 17% | 15% | 18% | 20% | 17% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Livermore Valley Joint Unified school district | County of Alameda
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation: wealth/poverty.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Altamont Creek Elementary math proficiency
Zero+ meets standard.
12% less $meal
12% less $meal
15% less $meal
18% less $meal
16% less $meal
• Any result above zero is proficient; below is not proficient. • There is a 99% chance that results will remain the same in coming years, which is to say, between the Upper and Lower Control Limits (the gray lines). • The houses with the % of students receiving a Free or Reduced Price Meal is a measure of wealth/poverty.